Acute infectious disease (6)
(Other definitions for cholera that I've seen before include "Infectious and often fatal Asiatic disease" , "Contagious disease" , "Infectious and often fatal intestinal disease (7" , "serious illness" , "Solemn promise" .)
(Other definitions for typhus that I've seen before include "Disease found in spy hut, strangely" , "Disease causing high fever and skin rash" , "Acute, infectious fever" , "Infectious disease with fever and purple rash" , "Dangerous fever transmitted by lice" .)